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Radiance Cosmos Seeds

Cosmos bipinnatus

5.00 (2 reviews)
  • HOW TO GROW
  • FAST FACTS
  • REVIEWS

HOW TO GROW

Sowing: In early spring or after the last frost, scatter the Radiance Cosmos seeds on the surface of loose soil. Keep the soil lightly moist until germination, which should take place within 10-20 days at soil temperatures from 65-75 degrees F. Cooler soil temperatures may delay germination. Seedlings do not need to be thinned, but can be transplanted if they appear too crowded. Since these Cosmos Sensation Radiance seeds germinate quickly in warm soil, they can be sown at any time before midsummer for another crop of flowers. To start the Radiance Cosmos seed indoors, sow on the surface of a flat 6-8 weeks before the last frost of spring; keep the soil evenly moist and at a temperature of 70-75 degrees F until germination. When there is no chance of frost, transplant them outdoors.

Growing: Water these plants regularly until they begin to bloom; at this point they become quite drought tolerant. This flower must not be over-watered, and grows well in drought conditions and heat; if prolonged drought occurs, give the plants occasional deep watering. If blooming begins to decrease, cut the plant back to 12" for new growth; more blossoms will come in about 4 weeks. Tall plants may need support or staking. If allowed to self-seed, the Radiance Cosmos flower will produce a new crop of flowers next year. This flower attracts birds, butterflies, and bees.

Harvesting: Cosmos blossoms make lovely, long lasting cut flowers. Cut long stems of blossoms that have just opened, and remove any foliage that will fall below the water level. These flowers usually have a vase life of 7-10 days. Radiance Cosmos blossoms also make attractive dried flowers.

Seed Saving: Allow the flowers to drop their petals and develop into spiky seed heads. When ripe, the heads will be brown or dark brown and easily broken apart to reveal the narrow, sharp seeds. Remove the ripe seed heads and spread them out to dry away from direct sunlight. When they have completely dried, break apart the heads to separate the seeds from the husk. Store the cleaned Cosmos Sensation Radiance seed in a cool, dry place.

FAST FACTS

Latin Name: Cosmos bipinnatus

Species Origin: Mexico

Type: Garden Flowers

Life Cycle: Annual

USDA Zones: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

US Regions: California, Mountain, Arid/Desert, Plains/Texas, Midwest, Northern, Northeast, Southeast

Seeds per Ounce: 4,000

Stratification: No Stratification

Germination Ease: No Stratification

Sunlight: Full Sun

Height: 48 Inches

Color: Pink

Bloom Season: Blooms Early Summer, Blooms Late Summer, Blooms Early Fall

Uses: Cut Flowers

Radiance Cosmos Seeds 5.0
Review By Roxanne Sterling

Quick Germination

The first to emerge.. for my ,main annual display. Happy!!

Radiance Cosmos Seeds 5.0
Review By Cindy from Michigan

I love Cosmos

I haven't tried this variety before but I have tried others and am looking forward to these beauties. But I realized that in my other reviews I never mentioned how quickly I received my order and that it was accurate. I have had no problem in getting the seeds that I order. I believe this is the 3rd year that I have ordered from Everwilde…I absolutely love the packages… I hope they never revert back to normal paper. The packages are why I come here first to get the most important crops for my garden.

Size Price Quantity
XL Mylar Packet (~500 Seeds) $3.48 -+
1 Oz Mylar (~4,000 Seeds) $7.52 -+
1/4 Lb Mylar (113g) $14.21 -+
1 Lb Mylar (454g) $39.00 Notify Me
5 Lb Bulk Bag (2.27kg) $175.50 -+
10 Lb Bulk Bag (4.54kg) $312.00 -+
25 Lb Bulk Bag (11.3kg) $741.00 Notify Me
50 Lb Bulk Bag (22.7kg) $1,404.00 Notify Me
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DESCRIPTION

Truly radiant to the eye, these rosy pink blossoms deepen to magenta around golden centers. If you want even more color, try mixing these with some of the other specialty Cosmos varieties! These annuals are carefree and don't consume a lot of time or effort.
Because of their Mexican heritage, these bright annuals meet high heat and drought conditions with native beauty and vigor. Spanish conquistadors searching for gold discovered these flowers on their journeys through Mexico. Mission gardens often included these flowers, which priests gave the name "cosmos," the Greek word for a harmonious whole, because of their neatly spaced petals. Cosmos flowers made their way to England with Spanish ambassadors in the late 18th century, and to the United States in the following century.

HOW TO GROW

Sowing: In early spring or after the last frost, scatter the Radiance Cosmos seeds on the surface of loose soil. Keep the soil lightly moist until germination, which should take place within 10-20 days at soil temperatures from 65-75 degrees F. Cooler soil temperatures may delay germination. Seedlings do not need to be thinned, but can be transplanted if they appear too crowded. Since these Cosmos Sensation Radiance seeds germinate quickly in warm soil, they can be sown at any time before midsummer for another crop of flowers. To start the Radiance Cosmos seed indoors, sow on the surface of a flat 6-8 weeks before the last frost of spring; keep the soil evenly moist and at a temperature of 70-75 degrees F until germination. When there is no chance of frost, transplant them outdoors.

Growing: Water these plants regularly until they begin to bloom; at this point they become quite drought tolerant. This flower must not be over-watered, and grows well in drought conditions and heat; if prolonged drought occurs, give the plants occasional deep watering. If blooming begins to decrease, cut the plant back to 12" for new growth; more blossoms will come in about 4 weeks. Tall plants may need support or staking. If allowed to self-seed, the Radiance Cosmos flower will produce a new crop of flowers next year. This flower attracts birds, butterflies, and bees.

Harvesting: Cosmos blossoms make lovely, long lasting cut flowers. Cut long stems of blossoms that have just opened, and remove any foliage that will fall below the water level. These flowers usually have a vase life of 7-10 days. Radiance Cosmos blossoms also make attractive dried flowers.

Seed Saving: Allow the flowers to drop their petals and develop into spiky seed heads. When ripe, the heads will be brown or dark brown and easily broken apart to reveal the narrow, sharp seeds. Remove the ripe seed heads and spread them out to dry away from direct sunlight. When they have completely dried, break apart the heads to separate the seeds from the husk. Store the cleaned Cosmos Sensation Radiance seed in a cool, dry place.

FAST FACTS

Latin Name: Cosmos bipinnatus

Species Origin: Mexico

Type: Garden Flowers

Life Cycle: Annual

USDA Zones: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

US Regions: California, Mountain, Arid/Desert, Plains/Texas, Midwest, Northern, Northeast, Southeast

Seeds per Ounce: 4,000

Stratification: No Stratification

Germination Ease: No Stratification

Sunlight: Full Sun

Height: 48 Inches

Color: Pink

Bloom Season: Blooms Early Summer, Blooms Late Summer, Blooms Early Fall

Uses: Cut Flowers

Reviews

5.00
Global Rating: 5.00 from 2 reviews
5.0

Review By Roxanne Sterling

Quick Germination

The first to emerge.. for my ,main annual display. Happy!!

5.0

Review By Cindy from Michigan

I love Cosmos

I haven't tried this variety before but I have tried others and am looking forward to these beauties. But I realized that in my other reviews I never mentioned how quickly I received my order and that it was accurate. I have had no problem in getting the seeds that I order. I believe this is the 3rd year that I have ordered from Everwilde…I absolutely love the packages… I hope they never revert back to normal paper. The packages are why I come here first to get the most important crops for my garden.

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